Higher Level
The more difficult levels are poorly designed. For Level 4, instead of writing better logic, the designers opted to "fix the dice" to gain an advantage for the computer which, at a ridiculous frequency, now rolls doubles, numbers that land on open points magically avoiding blocked ones, and numbers that land on points on which it establishes new blocked points against the player. At the same time, the dice are skewed against the player who will now, also with too great frequency, miss a point that has only a single opponents chip on it, miss a point that only has a single players chip on it, and roll very low numbers that slows the players progression across the board.
YOU NEED TO DO BETTER
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Backgammon - The Board Game